This is a LibriVox Fortnightly Poetry from December 7, 2008. The Chaos, by Gerard Nolst Trenité.
"The Chaos" is a poem which demonstrates the irregularity of English spelling and pronunciation, written by Gerard Nolst Trenité (1870-1946), also known under the pseudonym Charivarius. It first appeared in an appendix to the author's 1920 textbook Drop Your Foreign Accent: engelsche uitspraakoefeningen. (From Wikipedia)
Librivox catalog page HERE.
For more information, or to volunteer, please visit LibriVox.org.
Download M4B (38MB)
I dare you to read it aloud without one mispronunciation. Double your points if you aren't a native English speaker, as several of these readers. That's the point of the whole poem - how complicated English pronunciation is!